github.com/sberex/go-sberex@v1.8.2-0.20181113200658-ed96ac38f7d7/swarm/storage/swarmhasher.go (about) 1 // This file is part of the go-sberex library. The go-sberex library is 2 // free software: you can redistribute it and/or modify it under the terms 3 // of the GNU Lesser General Public License as published by the Free 4 // Software Foundation, either version 3 of the License, or (at your option) 5 // any later version. 6 // 7 // The go-sberex library is distributed in the hope that it will be useful, 8 // but WITHOUT ANY WARRANTY; without even the implied warranty of 9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 10 // General Public License <http://www.gnu.org/licenses/> for more details. 11 12 package storage 13 14 import ( 15 "hash" 16 ) 17 18 const ( 19 BMTHash = "BMT" 20 SHA3Hash = "SHA3" // http://golang.org/pkg/hash/#Hash 21 ) 22 23 type SwarmHash interface { 24 hash.Hash 25 ResetWithLength([]byte) 26 } 27 28 type HashWithLength struct { 29 hash.Hash 30 } 31 32 func (self *HashWithLength) ResetWithLength(length []byte) { 33 self.Reset() 34 self.Write(length) 35 }